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The purpose of this study was to examine the effects of plyometric and strength training interventions on the explosive power output of male volleyball trainees. A total of 68 project players participated in the study and were randomly allocated into four groups. The first group participated in plyometric training, the second and third groups took part in strength and combined training respectively. The fourth group, the control group, had participated only in the usual volleyball training program. The training session was conducted 3 times per week for 90 minutes, and the entire training intervention lasts for 12 weeks. To reveal the effect of each of the three training interventions in improving the explosive power of young players, the researcher measured the spike jump (m), block jump (m), standing broad jump (m), pull-up (rep) and sit-up (rep). The outcomes show a significant difference between the four groups (Pre vs. Post), and the combined group scored the most prominent result of all the other groups. The current study indicated that 12 weeks of involvement training meaningfully enriched explosive power of young volleyball players. Thus, it is concluded that a 12-weeks Plyometric and Strength Training intervention with a range of exercise intensity from 60% to 90% can positively impact the explosive power of the lower legs and thus boost the vertical jumping abilities. |
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